<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="分类名称" prop="typeName">
        <el-input
          v-model="queryParams.typeName"
          placeholder="请输入分类名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
	    <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['product:type:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-sort"
          size="mini"
          @click="toggleExpandAll"
        >展开/折叠</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table
      v-if="refreshTable"
      v-loading="loading"
      :data="typeList"
      row-key="typeId"
      :default-expand-all="isExpandAll"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
    >
      <el-table-column label="分类名称" prop="typeName" />
      <el-table-column label="分类图片" align="center" prop="typeImage" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.typeImage" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="排序" align="center" prop="typeTop" />
      <el-table-column label="状态" align="center" prop="typeStatus">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.sys_prod_status" :value="scope.row.typeStatus"/>
        </template>
      </el-table-column>
      <el-table-column label="父级ID" align="center" prop="typePid" />
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['product:type:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
            v-hasPermi="['product:type:add']"
          >新增</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['product:type:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改商品分类对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类名称" prop="typeName">
          <el-input v-model="form.typeName" placeholder="请输入分类名称" />
        </el-form-item>
        <el-form-item label="分类图片" prop="typeImage">
          <image-upload v-model="form.typeImage"/>
        </el-form-item>
        <el-form-item label="排序" prop="typeTop">
          <el-input v-model="form.typeTop" placeholder="请输入排序" />
        </el-form-item>
        <el-form-item label="状态" prop="typeStatus">
          <el-radio-group v-model="form.typeStatus">
            <el-radio
              v-for="dict in dict.type.sys_prod_status"
              :key="dict.value"
              :label="parseInt(dict.value)"
            >{{dict.label}}</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="父级ID" prop="typePid">
          <treeselect v-model="form.typePid" :options="typeOptions" :normalizer="normalizer" placeholder="请选择父级ID" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listType, getType, delType, addType, updateType } from "@/api/product/type"
import Treeselect from "@riophae/vue-treeselect"
import "@riophae/vue-treeselect/dist/vue-treeselect.css"

export default {
  name: "Type",
  dicts: ['sys_prod_status'],
  components: {
    Treeselect
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 商品分类表格数据
      typeList: [],
      // 商品分类树选项
      typeOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部展开
      isExpandAll: true,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        typeName: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      }
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询商品分类列表 */
    getList() {
      this.loading = true
      listType(this.queryParams).then(response => {
        this.typeList = this.handleTree(response.data, "typeId", "typePid")
        this.loading = false
      })
    },
    /** 转换商品分类数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children
      }
      return {
        id: node.typeId,
        label: node.typeName,
        children: node.children
      }
    },
	/** 查询商品分类下拉树结构 */
    getTreeselect() {
      listType().then(response => {
        this.typeOptions = []
        const data = { typeId: 0, typeName: '顶级节点', children: [] }
        data.children = this.handleTree(response.data, "typeId", "typePid")
        this.typeOptions.push(data)
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        typeId: null,
        typeName: null,
        typeImage: null,
        typeTop: null,
        typeStatus: null,
        typePid: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null
      }
      this.resetForm("form")
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm")
      this.handleQuery()
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset()
      this.getTreeselect()
      if (row != null && row.typeId) {
        this.form.typePid = row.typeId
      } else {
        this.form.typePid = 0
      }
      this.open = true
      this.title = "添加商品分类"
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false
      this.isExpandAll = !this.isExpandAll
      this.$nextTick(() => {
        this.refreshTable = true
      })
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      this.getTreeselect()
      if (row != null) {
        this.form.typePid = row.typePid
      }
      getType(row.typeId).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改商品分类"
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.typeId != null) {
            updateType(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            addType(this.form).then(response => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal.confirm('是否确认删除商品分类编号为"' + row.typeId + '"的数据项？').then(function() {
        return delType(row.typeId)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {})
    }
  }
}
</script>
